Gossen MetraWatt R2600 - Page 41

GOSSEN-METRAWATT GMBH 41
Remedies
no tune
Self-optimizing cannot be started
(controller type "Positioner" or
"Limit monitor“)
No reaction to error
Error display remains visible until a key stroke is made
–
tune error 2
Disturbed optimizing run in step 1 ... 13
(here step 2)
Control outputs I and II inactive
Self optimizing must be stopped
4
loop error
Measured increase in temperature too
low with the heater switched on 100 %
Control outputs I and II inactive
Error message is maintained until keystroke long
5
parameter error Parameter beyond permissible limits
Control outputs I + II inactive
The parameter level is disabled
6
digital error
Error recognized by monitoring
of the digital unit
Control outputs I + II inactive 7
analog error
Hardware error recognized by
monitoring of the analog unit
Control outputs I + II inactive 7
1. Eliminate sensor error.
2. Check current transformer.
3. Potentiometer for position readback: Check connection, re-calibrate.
4. Avoid disturbances impairing the optimizing run, such as sensor
errors.
5. Close the control loop: Check the function of sensor, control elements
and heater.
Check correlation between sensor and heater (wiring).
Perform correct optimization of the control parameters tu and Pb I.
6. Run default configuration and default parameters, and then re-confi-
gure and reset parameters, or upload user defined default setting.
7. Repair by competent service center.